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authorJose E. Marchesi <jose.marchesi@oracle.com>2019-05-31 11:10:51 +0200
committerJose E. Marchesi <jose.marchesi@oracle.com>2019-05-31 11:10:51 +0200
commita0486bac41d6ce47f27795a5abbca5cc53ddba00 (patch)
treef68e14cbd729cfb89a15307d4ccdd110658286dc /libctf/configure.ac
parentff4a4474eba6488c8ad3cae51a685fe282ab249a (diff)
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libctf: fix a number of build problems found on Solaris and NetBSD
- Use of nonportable <endian.h> - Use of qsort_r - Use of zlib without appropriate magic to pull in the binutils zlib - Use of off64_t without checking (fixed by dropping the unused fields that need off64_t entirely) - signedness problems due to long being too short a type on 32-bit platforms: ctf_id_t is now 'unsigned long', and CTF_ERR must be used only for functions that return ctf_id_t - One lingering use of bzero() and of <sys/errno.h> All fixed, using code from gnulib where possible. Relatedly, set cts_size in a couple of places it was missed (string table and symbol table loading upon ctf_bfdopen()). binutils/ * objdump.c (make_ctfsect): Drop cts_type, cts_flags, and cts_offset. * readelf.c (shdr_to_ctf_sect): Likewise. include/ * ctf-api.h (ctf_sect_t): Drop cts_type, cts_flags, and cts_offset. (ctf_id_t): This is now an unsigned type. (CTF_ERR): Cast it to ctf_id_t. Note that it should only be used for ctf_id_t-returning functions. libctf/ * Makefile.am (ZLIB): New. (ZLIBINC): Likewise. (AM_CFLAGS): Use them. (libctf_a_LIBADD): New, for LIBOBJS. * configure.ac: Check for zlib, endian.h, and qsort_r. * ctf-endian.h: New, providing htole64 and le64toh. * swap.h: Code style fixes. (bswap_identity_64): New. * qsort_r.c: New, from gnulib (with one added #include). * ctf-decls.h: New, providing a conditional qsort_r declaration, and unconditional definitions of MIN and MAX. * ctf-impl.h: Use it. Do not use <sys/errno.h>. (ctf_set_errno): Now returns unsigned long. * ctf-util.c (ctf_set_errno): Adjust here too. * ctf-archive.c: Use ctf-endian.h. (ctf_arc_open_by_offset): Use memset, not bzero. Drop cts_type, cts_flags and cts_offset. (ctf_arc_write): Drop debugging dependent on the size of off_t. * ctf-create.c: Provide a definition of roundup if not defined. (ctf_create): Drop cts_type, cts_flags and cts_offset. (ctf_add_reftype): Do not check if type IDs are below zero. (ctf_add_slice): Likewise. (ctf_add_typedef): Likewise. (ctf_add_member_offset): Cast error-returning ssize_t's to size_t when known error-free. Drop CTF_ERR usage for functions returning int. (ctf_add_member_encoded): Drop CTF_ERR usage for functions returning int. (ctf_add_variable): Likewise. (enumcmp): Likewise. (enumadd): Likewise. (membcmp): Likewise. (ctf_add_type): Likewise. Cast error-returning ssize_t's to size_t when known error-free. * ctf-dump.c (ctf_is_slice): Drop CTF_ERR usage for functions returning int: use CTF_ERR for functions returning ctf_type_id. (ctf_dump_label): Likewise. (ctf_dump_objts): Likewise. * ctf-labels.c (ctf_label_topmost): Likewise. (ctf_label_iter): Likewise. (ctf_label_info): Likewise. * ctf-lookup.c (ctf_func_args): Likewise. * ctf-open.c (upgrade_types): Cast to size_t where appropriate. (ctf_bufopen): Likewise. Use zlib types as needed. * ctf-types.c (ctf_member_iter): Drop CTF_ERR usage for functions returning int. (ctf_enum_iter): Likewise. (ctf_type_size): Likewise. (ctf_type_align): Likewise. Cast to size_t where appropriate. (ctf_type_kind_unsliced): Likewise. (ctf_type_kind): Likewise. (ctf_type_encoding): Likewise. (ctf_member_info): Likewise. (ctf_array_info): Likewise. (ctf_enum_value): Likewise. (ctf_type_rvisit): Likewise. * ctf-open-bfd.c (ctf_bfdopen): Drop cts_type, cts_flags and cts_offset. (ctf_simple_open): Likewise. (ctf_bfdopen_ctfsect): Likewise. Set cts_size properly. * Makefile.in: Regenerate. * aclocal.m4: Likewise. * config.h: Likewise. * configure: Likewise.
Diffstat (limited to 'libctf/configure.ac')
-rw-r--r--libctf/configure.ac6
1 files changed, 5 insertions, 1 deletions
diff --git a/libctf/configure.ac b/libctf/configure.ac
index 2df1093..8fd5388 100644
--- a/libctf/configure.ac
+++ b/libctf/configure.ac
@@ -56,6 +56,7 @@ ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_libctf_warn_cflags])
AC_FUNC_MMAP
AC_SEARCH_LIBS(dlopen, dl)
+AM_ZLIB
# Similar to GDB_AC_CHECK_BFD.
OLD_CFLAGS=$CFLAGS
@@ -86,8 +87,11 @@ if test $ac_cv_libctf_bfd_elf = yes; then
[Whether libbfd was configured for an ELF target.])
fi
-AC_CHECK_HEADERS(byteswap.h)
+AC_C_BIGENDIAN
+AC_CHECK_HEADERS(byteswap.h endian.h)
AC_CHECK_FUNCS(pread)
+AC_CHECK_DECLS([qsort_r])
+AC_LIBOBJ([qsort_r])
AC_CONFIG_FILES(Makefile)
AC_CONFIG_HEADERS(config.h)